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diff --git a/reports/4.2.6/perf.json b/reports/4.2.6/perf.json
new file mode 100644
index 0000000..6985290
--- /dev/null
+++ b/reports/4.2.6/perf.json
@@ -0,0 +1,398 @@
+{
+    "tag": "4.2.6",
+    "generated_at": "2026-01-19T20:22:16Z",
+    "parent_pipeline_id": 11361,
+    "child_pipeline_id": 11363,
+    "summary": {
+        "total_tests": 642,
+        "passed_tests": 642,
+        "failed_tests": 0,
+        "total_languages": 42,
+        "passed_languages": 42,
+        "avg_duration_seconds": 54,
+        "max_duration_seconds": 128,
+        "min_duration_seconds": 23,
+        "slowest_language": "haskell",
+        "fastest_language": "awk"
+    },
+    "languages": [
+  {
+    "language": "haskell",
+    "status": "Passed",
+    "queued_duration": 57.927747,
+    "started_at": "2026-01-19T20:18:56Z",
+    "updated_at": "2026-01-19T20:21:04Z",
+    "job_id": 27246,
+    "duration_seconds": 128
+  },
+  {
+    "language": "go",
+    "status": "Passed",
+    "queued_duration": 42.595107,
+    "started_at": "2026-01-19T20:18:39Z",
+    "updated_at": "2026-01-19T20:20:26Z",
+    "job_id": 27233,
+    "duration_seconds": 107
+  },
+  {
+    "language": "cpp",
+    "status": "Passed",
+    "queued_duration": 41.801062,
+    "started_at": "2026-01-19T20:18:38Z",
+    "updated_at": "2026-01-19T20:20:11Z",
+    "job_id": 27232,
+    "duration_seconds": 93
+  },
+  {
+    "language": "rust",
+    "status": "Passed",
+    "queued_duration": 43.071671,
+    "started_at": "2026-01-19T20:18:40Z",
+    "updated_at": "2026-01-19T20:20:11Z",
+    "job_id": 27234,
+    "duration_seconds": 91
+  },
+  {
+    "language": "forth",
+    "status": "Passed",
+    "queued_duration": 110.897751,
+    "started_at": "2026-01-19T20:19:49Z",
+    "updated_at": "2026-01-19T20:21:04Z",
+    "job_id": 27251,
+    "duration_seconds": 75
+  },
+  {
+    "language": "c",
+    "status": "Passed",
+    "queued_duration": 38.945258,
+    "started_at": "2026-01-19T20:18:35Z",
+    "updated_at": "2026-01-19T20:19:49Z",
+    "job_id": 27231,
+    "duration_seconds": 74
+  },
+  {
+    "language": "java",
+    "status": "Passed",
+    "queued_duration": 43.553539,
+    "started_at": "2026-01-19T20:18:40Z",
+    "updated_at": "2026-01-19T20:19:50Z",
+    "job_id": 27235,
+    "duration_seconds": 70
+  },
+  {
+    "language": "kotlin",
+    "status": "Passed",
+    "queued_duration": 44.384108,
+    "started_at": "2026-01-19T20:18:41Z",
+    "updated_at": "2026-01-19T20:19:50Z",
+    "job_id": 27236,
+    "duration_seconds": 69
+  },
+  {
+    "language": "cobol",
+    "status": "Passed",
+    "queued_duration": 48.393788,
+    "started_at": "2026-01-19T20:18:45Z",
+    "updated_at": "2026-01-19T20:19:51Z",
+    "job_id": 27237,
+    "duration_seconds": 66
+  },
+  {
+    "language": "fortran",
+    "status": "Passed",
+    "queued_duration": 50.644676,
+    "started_at": "2026-01-19T20:18:48Z",
+    "updated_at": "2026-01-19T20:19:50Z",
+    "job_id": 27238,
+    "duration_seconds": 62
+  },
+  {
+    "language": "csharp",
+    "status": "Passed",
+    "queued_duration": 59.39955,
+    "started_at": "2026-01-19T20:18:58Z",
+    "updated_at": "2026-01-19T20:19:59Z",
+    "job_id": 27249,
+    "duration_seconds": 61
+  },
+  {
+    "language": "zig",
+    "status": "Passed",
+    "queued_duration": 54.806684,
+    "started_at": "2026-01-19T20:18:52Z",
+    "updated_at": "2026-01-19T20:19:51Z",
+    "job_id": 27240,
+    "duration_seconds": 59
+  },
+  {
+    "language": "prolog",
+    "status": "Passed",
+    "queued_duration": 59.831917,
+    "started_at": "2026-01-19T20:18:58Z",
+    "updated_at": "2026-01-19T20:19:57Z",
+    "job_id": 27250,
+    "duration_seconds": 59
+  },
+  {
+    "language": "v",
+    "status": "Passed",
+    "queued_duration": 55.777392,
+    "started_at": "2026-01-19T20:18:53Z",
+    "updated_at": "2026-01-19T20:19:51Z",
+    "job_id": 27242,
+    "duration_seconds": 58
+  },
+  {
+    "language": "nim",
+    "status": "Passed",
+    "queued_duration": 55.314905,
+    "started_at": "2026-01-19T20:18:53Z",
+    "updated_at": "2026-01-19T20:19:51Z",
+    "job_id": 27241,
+    "duration_seconds": 58
+  },
+  {
+    "language": "d",
+    "status": "Passed",
+    "queued_duration": 54.185143,
+    "started_at": "2026-01-19T20:18:51Z",
+    "updated_at": "2026-01-19T20:19:49Z",
+    "job_id": 27239,
+    "duration_seconds": 58
+  },
+  {
+    "language": "objc",
+    "status": "Passed",
+    "queued_duration": 56.190438,
+    "started_at": "2026-01-19T20:18:54Z",
+    "updated_at": "2026-01-19T20:19:50Z",
+    "job_id": 27243,
+    "duration_seconds": 56
+  },
+  {
+    "language": "dart",
+    "status": "Passed",
+    "queued_duration": 56.747277,
+    "started_at": "2026-01-19T20:18:54Z",
+    "updated_at": "2026-01-19T20:19:50Z",
+    "job_id": 27244,
+    "duration_seconds": 56
+  },
+  {
+    "language": "julia",
+    "status": "Passed",
+    "queued_duration": 57.479759,
+    "started_at": "2026-01-19T20:18:55Z",
+    "updated_at": "2026-01-19T20:19:49Z",
+    "job_id": 27245,
+    "duration_seconds": 54
+  },
+  {
+    "language": "typescript",
+    "status": "Passed",
+    "queued_duration": 3.646439,
+    "started_at": "2026-01-19T20:17:58Z",
+    "updated_at": "2026-01-19T20:18:51Z",
+    "job_id": 27212,
+    "duration_seconds": 53
+  },
+  {
+    "language": "ocaml",
+    "status": "Passed",
+    "queued_duration": 58.422061,
+    "started_at": "2026-01-19T20:18:56Z",
+    "updated_at": "2026-01-19T20:19:49Z",
+    "job_id": 27247,
+    "duration_seconds": 53
+  },
+  {
+    "language": "python",
+    "status": "Passed",
+    "queued_duration": 2.222805,
+    "started_at": "2026-01-19T20:17:56Z",
+    "updated_at": "2026-01-19T20:18:48Z",
+    "job_id": 27210,
+    "duration_seconds": 52
+  },
+  {
+    "language": "fsharp",
+    "status": "Passed",
+    "queued_duration": 58.949975,
+    "started_at": "2026-01-19T20:18:57Z",
+    "updated_at": "2026-01-19T20:19:49Z",
+    "job_id": 27248,
+    "duration_seconds": 52
+  },
+  {
+    "language": "javascript",
+    "status": "Passed",
+    "queued_duration": 2.898278,
+    "started_at": "2026-01-19T20:17:57Z",
+    "updated_at": "2026-01-19T20:18:47Z",
+    "job_id": 27211,
+    "duration_seconds": 50
+  },
+  {
+    "language": "ruby",
+    "status": "Passed",
+    "queued_duration": 4.776109,
+    "started_at": "2026-01-19T20:17:59Z",
+    "updated_at": "2026-01-19T20:18:47Z",
+    "job_id": 27213,
+    "duration_seconds": 48
+  },
+  {
+    "language": "php",
+    "status": "Passed",
+    "queued_duration": 7.186457,
+    "started_at": "2026-01-19T20:18:02Z",
+    "updated_at": "2026-01-19T20:18:50Z",
+    "job_id": 27215,
+    "duration_seconds": 48
+  },
+  {
+    "language": "r",
+    "status": "Passed",
+    "queued_duration": 10.194032,
+    "started_at": "2026-01-19T20:18:05Z",
+    "updated_at": "2026-01-19T20:18:52Z",
+    "job_id": 27218,
+    "duration_seconds": 47
+  },
+  {
+    "language": "perl",
+    "status": "Passed",
+    "queued_duration": 6.159775,
+    "started_at": "2026-01-19T20:18:01Z",
+    "updated_at": "2026-01-19T20:18:45Z",
+    "job_id": 27214,
+    "duration_seconds": 44
+  },
+  {
+    "language": "tcl",
+    "status": "Passed",
+    "queued_duration": 12.293658,
+    "started_at": "2026-01-19T20:18:08Z",
+    "updated_at": "2026-01-19T20:18:50Z",
+    "job_id": 27221,
+    "duration_seconds": 42
+  },
+  {
+    "language": "scheme",
+    "status": "Passed",
+    "queued_duration": 12.818309,
+    "started_at": "2026-01-19T20:18:08Z",
+    "updated_at": "2026-01-19T20:18:50Z",
+    "job_id": 27222,
+    "duration_seconds": 42
+  },
+  {
+    "language": "elixir",
+    "status": "Passed",
+    "queued_duration": 11.287902,
+    "started_at": "2026-01-19T20:18:06Z",
+    "updated_at": "2026-01-19T20:18:47Z",
+    "job_id": 27219,
+    "duration_seconds": 41
+  },
+  {
+    "language": "groovy",
+    "status": "Passed",
+    "queued_duration": 15.729057,
+    "started_at": "2026-01-19T20:18:12Z",
+    "updated_at": "2026-01-19T20:18:52Z",
+    "job_id": 27227,
+    "duration_seconds": 40
+  },
+  {
+    "language": "clojure",
+    "status": "Passed",
+    "queued_duration": 14.149206,
+    "started_at": "2026-01-19T20:18:10Z",
+    "updated_at": "2026-01-19T20:18:50Z",
+    "job_id": 27224,
+    "duration_seconds": 40
+  },
+  {
+    "language": "lua",
+    "status": "Passed",
+    "queued_duration": 7.964979,
+    "started_at": "2026-01-19T20:18:03Z",
+    "updated_at": "2026-01-19T20:18:39Z",
+    "job_id": 27216,
+    "duration_seconds": 36
+  },
+  {
+    "language": "commonlisp",
+    "status": "Passed",
+    "queued_duration": 14.698995,
+    "started_at": "2026-01-19T20:18:10Z",
+    "updated_at": "2026-01-19T20:18:45Z",
+    "job_id": 27225,
+    "duration_seconds": 35
+  },
+  {
+    "language": "bash",
+    "status": "Passed",
+    "queued_duration": 9.03205,
+    "started_at": "2026-01-19T20:18:04Z",
+    "updated_at": "2026-01-19T20:18:39Z",
+    "job_id": 27217,
+    "duration_seconds": 35
+  },
+  {
+    "language": "erlang",
+    "status": "Passed",
+    "queued_duration": 11.926415,
+    "started_at": "2026-01-19T20:18:07Z",
+    "updated_at": "2026-01-19T20:18:41Z",
+    "job_id": 27220,
+    "duration_seconds": 34
+  },
+  {
+    "language": "deno",
+    "status": "Passed",
+    "queued_duration": 16.358662,
+    "started_at": "2026-01-19T20:18:13Z",
+    "updated_at": "2026-01-19T20:18:47Z",
+    "job_id": 27228,
+    "duration_seconds": 34
+  },
+  {
+    "language": "raku",
+    "status": "Passed",
+    "queued_duration": 17.546453,
+    "started_at": "2026-01-19T20:18:14Z",
+    "updated_at": "2026-01-19T20:18:47Z",
+    "job_id": 27230,
+    "duration_seconds": 33
+  },
+  {
+    "language": "crystal",
+    "status": "Passed",
+    "queued_duration": 15.276626,
+    "started_at": "2026-01-19T20:18:11Z",
+    "updated_at": "2026-01-19T20:18:39Z",
+    "job_id": 27226,
+    "duration_seconds": 28
+  },
+  {
+    "language": "powershell",
+    "status": "Passed",
+    "queued_duration": 13.352018,
+    "started_at": "2026-01-19T20:18:09Z",
+    "updated_at": "2026-01-19T20:18:35Z",
+    "job_id": 27223,
+    "duration_seconds": 26
+  },
+  {
+    "language": "awk",
+    "status": "Passed",
+    "queued_duration": 17.13305,
+    "started_at": "2026-01-19T20:18:13Z",
+    "updated_at": "2026-01-19T20:18:36Z",
+    "job_id": 27229,
+    "duration_seconds": 23
+  }
+]
+}
diff --git a/reports/4.2.6/perf.md b/reports/4.2.6/perf.md
new file mode 100644
index 0000000..7aab6ca
--- /dev/null
+++ b/reports/4.2.6/perf.md
@@ -0,0 +1,145 @@
+# Performance Report: 4.2.6
+
+**Generated:** 2026-01-19T20:22:16Z
+**Pipeline:** [#11363](https://git.unturf.com/engineering/unturf/un-inception/-/pipelines/11363)
+
+## Summary
+
+| Metric | Value |
+|--------|-------|
+| Total Tests | 642 |
+| Passed | 642 |
+| Failed | 0 |
+| Pass Rate | 100.0% |
+| Languages | 42 |
+| Avg Duration | 54s |
+| Slowest | haskell (128s) |
+| Fastest | awk (23s) |
+
+---
+
+## Test Duration by Language
+
+The primary performance metric - how long each language takes to run its full test suite (15 tests per language).
+
+![Duration by Language](chart-duration-by-language.png)
+
+**Key observations:**
+- **HASKELL** and **GO** are outliers at 90+ seconds
+- Most languages cluster between 20-40 seconds
+- Compiled languages (red) tend to be faster than interpreted (blue)
+- **AWK** is the fastest at 23 seconds
+
+---
+
+## Compiled vs Interpreted
+
+Comparing performance between compiled languages (C, Go, Rust, etc.) and interpreted languages (Python, Ruby, JavaScript, etc.).
+
+![Category Comparison](chart-category-comparison.png)
+
+**Findings:**
+- 20 compiled languages vs 22 interpreted
+- Compiled languages have lower median execution time
+- Interpreted languages show more variance (wider spread)
+- The white diamond marks the mean for each category
+
+---
+
+## Duration Distribution
+
+Histogram showing how test durations are distributed across all 42 languages.
+
+![Duration Histogram](chart-duration-histogram.png)
+
+**Distribution analysis:**
+- Most languages complete in 20-35 seconds (the peak)
+- Mean (green dashed) and median (blue dotted) are close together
+- Long tail on the right from slow outliers (haskell, go)
+
+---
+
+## Speed Leaders
+
+Side-by-side comparison of the 10 slowest and 10 fastest languages.
+
+![Speed Leaders](chart-speed-leaders.png)
+
+**Slowest (left):** HASKELL, GO, CPP, RUST, FORTH
+**Fastest (right):** AWK, POWERSHELL, CRYSTAL, RAKU, DENO
+
+---
+
+## Queue vs Execution Time
+
+Scatter plot showing the relationship between CI queue wait time and actual test execution time.
+
+![Queue vs Execution](chart-queue-vs-execution.png)
+
+**Notes:**
+- Queue time is how long the job waited for a runner
+- Most jobs had similar queue times (clustered vertically)
+- Outliers labeled - haskell and go took longest to execute regardless of queue time
+
+---
+
+## Dashboard
+
+Summary dashboard combining key metrics and visualizations.
+
+![Dashboard](chart-dashboard.png)
+
+---
+
+## Raw Data
+
+### Per-Language Performance
+
+| Language | Status | Duration |
+|----------|--------|----------|
+| haskell | Passed | 128s |
+| go | Passed | 107s |
+| cpp | Passed | 93s |
+| rust | Passed | 91s |
+| forth | Passed | 75s |
+| c | Passed | 74s |
+| java | Passed | 70s |
+| kotlin | Passed | 69s |
+| cobol | Passed | 66s |
+| fortran | Passed | 62s |
+| csharp | Passed | 61s |
+| zig | Passed | 59s |
+| prolog | Passed | 59s |
+| v | Passed | 58s |
+| nim | Passed | 58s |
+| d | Passed | 58s |
+| objc | Passed | 56s |
+| dart | Passed | 56s |
+| julia | Passed | 54s |
+| typescript | Passed | 53s |
+| ocaml | Passed | 53s |
+| python | Passed | 52s |
+| fsharp | Passed | 52s |
+| javascript | Passed | 50s |
+| ruby | Passed | 48s |
+| php | Passed | 48s |
+| r | Passed | 47s |
+| perl | Passed | 44s |
+| tcl | Passed | 42s |
+| scheme | Passed | 42s |
+| elixir | Passed | 41s |
+| groovy | Passed | 40s |
+| clojure | Passed | 40s |
+| lua | Passed | 36s |
+| commonlisp | Passed | 35s |
+| bash | Passed | 35s |
+| erlang | Passed | 34s |
+| deno | Passed | 34s |
+| raku | Passed | 33s |
+| crystal | Passed | 28s |
+| powershell | Passed | 26s |
+| awk | Passed | 23s |
+
+---
+
+*Report generated by UN Inception CI pipeline*
diff --git a/reports/PERFORMANCE-HISTORY.md b/reports/PERFORMANCE-HISTORY.md
index e2f48a6..55dc8aa 100644
--- a/reports/PERFORMANCE-HISTORY.md
+++ b/reports/PERFORMANCE-HISTORY.md
@@ -10,3 +10,4 @@ Tracking compile and test execution times across releases.
 | 4.2.3 | 2026-01-19 | 642 | 100.0% | 63s | rust | v |
 | 4.2.4 | 2026-01-19 | 682 | 100.0% | 70s | python | c |
 | 4.2.5 | 2026-01-19 | 658 | 100.0% | 67s | v | erlang |
+| 4.2.6 | 2026-01-19 | 642 | 100.0% | 54s | haskell | awk |